easeweather.com
Portsmouth
AberdeenArchwayAylesburyBangorBasildonBathBelfastBexleyBirminghamBlackburnBlackpoolBognor RegisBoltonBournemouthBradfordBrightonBristolBuckleyBurnleyCambridgeCardiffCarlisleCarshaltonChathamChelmsfordCheltenhamChesterfieldColchesterCoventryCrawleyDawlishDerbyDerryDoncasterDudleyDundeeEastbourneEdinburghExeterFolkestoneFort WilliamGillinghamGlasgowGloucesterGreat YarmouthGuildfordHarlowHarrowHigh WycombeHuddersfieldIlfordInvernessIpswichKingston upon HullLeedsLeicesterLittlehamptonLiverpoolLondonLutonMaidstoneManchesterMansfieldMargateMilton KeynesNewcastle upon TyneNewportNorthamptonNorwichNottinghamOldhamOxfordPerthPeterboroughPlymouthPoole
Portsmouth
PrestonReadingRoyal Tunbridge WellsSheffieldSloughSouthallSouthamptonSouthend-on-SeaSt HelensStaffordStevenageStoke-on-TrentSunderlandSwanseaSwindonTauntonTorquayUxbridgeWeymouthWiganWolverhamptonWorthingWrexhamYork More Locations
United Kingdom weather

10 day weather forecast for Portsmouth

Saturday, 19th September 2026, at 03:03
today
Patchy rain possible
19° 17°
tomorrow
Overcast
21° 17°
Monday
Sunny
20° 15°
Tuesday
Sunny
20° 17°
Wednesday
Overcast
18° 15°
Thursday
Sunny
21° 15°
Friday
Overcast
19° 14°
 More Details See
more
Portsmouth Weather Pages

Portsmouth weather forecast

The weather forecast for Portsmouth over the next 5 days indicates comfortable conditions with temperatures ranging from 18 °C to 21 °C.

Light rain is expected from Saturday until Sunday.

Wind speeds are expected to be strong, averaging around 43 km/h.

Weather today
Portsmouth weather forecast

Portsmouth 14 days weather forecast

This weeks weather in Portsmouth. Click on a date for detailed forecasts
Sat. 19
19°
17°
Patchy rain possible
0.4 mm
Sun. 20
21°
17°
Overcast
0.7 mm
Mon. 21
20°
15°
Sunny
0 mm
Tue. 22
20°
17°
Sunny
0 mm
Wed. 23
18°
15°
Overcast
0 mm
Thu. 24
21°
15°
Sunny
0 mm
Fri. 25
19°
14°
Overcast
0 mm
Sat. 26
21°
15°
Sunny
0 mm
Sun. 27
21°
16°
Sunny
0 mm
Mon. 28
20°
15°
Overcast
0 mm
Tue. 29
16°
12°
Overcast
9 mm
Wed. 30
16°
11°
Overcast
0 mm
Thu. 1
15°
11°
Sunny
0 mm
Further Ahead
Select a date

You can click on date

Access Portsmouth weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Got it

Portsmouth long range weather forecast

30 day weather forecast for Portsmouth
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain shower
19°
2
Light rain shower
19°
3
Light rain shower
20°
4
Light rain shower
20°
5
Sunny
19°
6
Overcast
21°
7
Sunny
21°
8
Patchy rain possible
20°
9
Partly cloudy
19°
10
Partly cloudy
20°
11
Patchy rain possible
18°
12
Light rain shower
18°
13
Overcast
18°
14
Partly cloudy
18°
15
Sunny
19°
16
Partly cloudy
19°
17
Light rain shower
19°
18
Light rain shower
20°
19
Patchy rain possible
19°
20
Overcast
21°
21
Sunny
20°
22
Sunny
20°
23
Overcast
18°
24
Sunny
21°
25
Overcast
19°
26
Sunny
21°
27
Sunny
21°
28
Overcast
20°
29
Overcast
16°
30
Overcast
16°
Important Notice
Our Portsmouth long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in Portsmouth

The chart displays the expected rainfall values (in mm) over the next 14 days in Portsmouth, highlighting variations in precipitation levels for specific dates. ☔

Portsmouth Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in Portsmouth over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

Frequently asked questions about the weather in Portsmouth

How warm is it in Portsmouth over the next 14 days?
Over the next two weeks, temperatures in Portsmouth are expected to range from around 11 °C on the coldest nights up to about 21 °C on the warmest days. Use this range to plan what to pack and wear.

Will it rain in Portsmouth in the next two weeks?
Yes - rain is expected on about 3 of the next 14 days in Portsmouth, with roughly 10.1 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.

How windy is it in Portsmouth?
Maximum wind speeds in Portsmouth are forecast to reach about 43 km/h at their peak over the next 14 days.

When is the best time to visit Portsmouth?
For a month-by-month look at temperatures and rainfall, see our best time to visit Portsmouth guide.

How accurate is the 14-day forecast for Portsmouth?
Our Portsmouth forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.

Quick links

More Portsmouth weather pages
You are here
Location coordinates Where is Portsmouth?

Get accurate weather forecasts for Portsmouth, located at latitude 50.799 and longitude -1.091. Stay updated with localized weather information tailored for Portsmouth.

Found a mistake?
We appreciate your attention to details. Tell us here.